EFFECT OF GAUGE-FIELDS ON NUCLEAR MAGNETIC-RELAXATION RATE AND SPIN SUSCEPTIBILITY

The effect of gauge fields representing the local constraints and the phase fluctuation of the bond order parameters are investigated for the fluxless state which was recently proposed by Nagaosa and Lee as a possible model for high Tc oxides. If the system is clean, both spin susceptibility and NMR rate, (T1T)-1, are found to be essentially independent of temperature, whereas in a dirty case, the latter increases in pro-portion to the inverse temperature. © 1990, THE PHYSICAL SOCIETY OF JAPAN. All rights reserved.